20431745

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{479}}^1$

素因数の和:952

約数の個数: 16

約数和(自身を含む): 25920000

約数和(自身を除く): 5488255

約数列:

[1, 5, 19, 95, 449, 479, 2245, 2395, 8531, 9101, 42655, 45505, 215071, 1075355, 4086349, 20431745]

約数ペア:

[(1, 20431745), (5, 4086349), (19, 1075355), (95, 215071), (449, 45505), (479, 42655), (2245, 9101), (2395, 8531)]